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CURDIR.BAS
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BASIC Source File
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1992-01-28
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816b
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34 lines
' CurDir.Bas - Support module to contain the CurDir$ function.
' $INCLUDE: 'CURDIR.BI'
' $INCLUDE: 'QB.BI'
FUNCTION CurDir$
' CurDir$ - Returns a string containing the current working
' drive and directory.
DIM Regs AS RegTypeX
DIM cwdTmp1 AS STRING * 64
DIM cwDrv AS INTEGER
Regs.AX = &H1900 ' get current disk
InterruptX &H21, Regs, Regs
cwDrv = Regs.AX AND &HFF
LSET cwdTmp1 = ""
Regs.AX = &H4700 ' get current working direcory
Regs.DX = 0 ' specify current drive
Regs.DS = VARSEG(cwdTmp1)
Regs.SI = VARPTR(cwdTmp1)
InterruptX &H21, Regs, Regs
' Construct the final current directory string.
cwdTmp2$ = CHR$(cwDrv + &H41) + ":\"
CurDir$ = cwdTmp2$ + MID$(cwdTmp1, 1, INSTR(cwdTmp1, CHR$(0)) - 1)
END FUNCTION